I think you're overstating things a bit there Andy.
Gomes signed on the 25th June so that should be in the accounts
See
https://www.bbc.co.uk/sport/football/48764807
Lossl was on a free, and though I'd expect them to be more than Robles ( who he replaced ) I can't see his wages being huge.
Gueye going out probably pretty much balanced Gbamin coming in, so that leaves Iwobi and Delph as being extra outgoings financially from the Summer, which aren't in the accounts just published. Lookman and Vlasic going out would have offset some of the transfer fees for Iwobi and Delph, but they'll doubtless be on higher wages.
edit : I forget about Onyekuru going out, so, along with Lookman and Vlasic, that probably pretty much balances the fees for Delph and Iwobi - still leaves a wage difference though